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MacArthur, PA Weather Forecast
MacArthur, PA Weather Forecast Date: 803 PM EDT Thu Sep 10 2026
The area/counties/county of: Beaver, including the cities of: Aliquippa, Beaver Falls, Ambridge, and Monaca.or toggle through each period.
Rest of Tonight... Mostly cloudy with a 20% chance of showers. Patchy fog early this evening. Areas of fog. Lows in the lower 60s. North winds around 5 mph early this evening, becoming light and variable.
Friday... Patchy fog in the morning. Partly cloudy. Highs around 80. Northeast winds around 5 mph in the morning, becoming light and variable.
Friday Night... Partly cloudy. Lows in the lower 60s. East winds around 5 mph.
Saturday... Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a slight chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Southeast winds around 5 mph, becoming south around 5 mph in the afternoon. Chance of rain 70%.
Saturday Night... Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Warm with lows in the mid 60s. Southwest winds around 5 mph. Chance of rain 70%.
Sunday... Partly sunny in the morning, then partly cloudy with a chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30%.
Sunday Night... Mostly cloudy. Lows around 60.
Monday... Partly cloudy. Highs in the mid 70s.
Monday Night... Partly cloudy. Lows around 60.
Tuesday... Mostly sunny. Warm with highs in the mid 80s.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. A 30% chance of showers. Warm with lows in the mid 60s.
Wednesday... Partly sunny with a chance of showers. Highs in the lower 80s. Chance of rain 50%.
Wednesday Night... Mostly cloudy with a chance of showers. Warm with lows in the mid 60s. Chance of rain 50%.
POP = Probability of Precipitation
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